Optical: systems and elements – Compound lens system – Telescope
Patent
1995-12-18
1998-10-13
Nguyen, Thong
Optical: systems and elements
Compound lens system
Telescope
248638, G02B 2300, F16M 100
Patent
active
058221166
ABSTRACT:
A drive device for rotating a main mobile assembly relative to a support about a rotation axis includes an intermediate mobile assembly rotated about the same rotation axis. A small travel linear electromagnetic drive device operates tangentially between the intermediate mobile assembly and the mobile assembly, being controlled in accordance with the position of the main mobile assembly relative to the support. A large travel drive device rotates the intermediate mobile assembly relative to the support in accordance with the relative position of the intermediate mobile assembly and the main mobile assembly. End stops delimit predetermined movement of the main mobile assembly relative to the intermediate mobile assembly.
REFERENCES:
patent: 3942865 (1976-03-01), Rand
patent: 4318522 (1982-03-01), Appleberry
patent: 4541294 (1985-09-01), Byers
patent: 4683391 (1987-07-01), Higuchi
patent: 4723075 (1988-02-01), German
patent: 4764881 (1988-08-01), Gagnon
patent: 4771545 (1988-09-01), Hisayasu et al.
patent: 4849666 (1989-07-01), Hoag
patent: 5368271 (1994-11-01), Kiunke et al.
Patent Abstracts of Japan vol. 11, No. 88 (E-490) JP-A-61 240866 (Nippon Denso Co Ltd).
Aerospatiale - Societe Nationale Industrielle
Nguyen Thong
Robinson Mark A.
LandOfFree
High-accuracy rotation control device, in particular for telesco does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High-accuracy rotation control device, in particular for telesco, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High-accuracy rotation control device, in particular for telesco will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-319080